54154DMQB

54154 DM54154 DM74154 4-Line to 16-Line Decoders Demultiplexers June 1989 54154 DM54154 DM74154 4-Line to 16-Line Decoders Demultiplexers General Description Each or these 4-line-to-16-line decoders utilizes TTL circuitry to decode four binary-coded inputs into one of sixteen mutually exclusive outputs when both the strobe inputs G1 and G2 are low The demultiplexing function is performed by using the 4 input lines to address the output line passing data from one of the strobe inputs with the other strobe input low When either strobe input is high all outputs are high These demultiplexers are ideally suited for implementing high-performance memory decoders All inputs are buffered and input clamping diodes are provided to minimize transmission-line effects and thereby simplify system design Features Y Y Y Y Y Y Y Decodes 4 binary-coded inputs into one of 16 mutually exclusive outputs Performs the demultiplexing function by distributing data from one input line to any one of 16 outputs Input clamping diodes simplify system design High fan-out low-impedance totem-pole outputs Typical propagation delay 3 levels of logic 19 ns Strobe 18 ns Typical power dissipation 170 mW Alternate Military Aerospace device (54154) is available Contact a National Semiconductor Sales Office Distributor for specifications Connection Diagram Dual-In-Line Package TL F 6548 – 1 Order Number 54154DMQB 54154FMQB DM54154J or DM74154N See NS Package Number J24A N24A or W24C C1995 National Semiconductor Corporation TL F 6548 RRD-B30M105 Printed in U S A Absolute Maximum Ratings (Note) Note The ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed The device should not be operated at these limits The parametric values defined in the ‘‘Electrical Characteristics’’ table are not guaranteed at the absolute maximum ratings The ‘‘Recommended Operating Conditions’’ table will define the conditions for actual device operation If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage 7V Input Voltage 5 5V Operating Free Air Temperature Range b 55 C to a 125 C DM54 and 54 DM74 0 C to a 70 C Storage Temperature Range b 65 C to a 150 C Recommended Operating Conditions Symbol VCC VIH VIL IOH IOL TA Parameter Min Supply Voltage High Level Input Voltage Low Level Input Voltage High Level Output Current Low Level Output Current Free Air Operating Temperature b 55 DM54154 Nom 5 Max 55 08 b0 8 DM74154 Min 4 75 2 08 b0 8 Units Max 5 25 V V V mA mA C Nom 5 45 2 16 125 0 16 70 Electrical Characteristics Symbol VI VOH VOL II IIH IIL IOS ICC Parameter Input Clamp Voltage High Level Output Voltage Low Level Output Voltage Input Current Input Voltage Max over recommended operating free air temperature range (unless otherwise noted) Conditions VCC e Min II e b12 mA VCC e Min IOH e Max VIL e Max VIH e Min VCC e Min IOL e Max VIH e Min VIL e Max VCC e Max VI e 5 5V VCC e Max VI e 2 4V VCC e Max VI e 0 4V VCC e Max (Note 2) VCC e Max (Note 3) DM54 DM74 DM54 DM74 b 20 b 18 Min Typ (Note 1) Max b1 5 Units V V 24 32 0 25 04 1 40 b1 6 b 55 b 57 V mA mA mA mA mA High Level Input Current Low Level Input Current Short Circuit Output Current Supply Current 34 34 49 56 Note 1 All typicals are at VCC e 5V TA e 25 C Note 2 Not more than one output should be shorted at a time Note 3 ICC is measured with all outputs open and all inputs grounded Switching Characteristics Symbol tPLH tPHL tPLH tPHL Parameter at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load) From (Input) To (Output) Data to Output Data to Output Strobe to Output Strobe to Output RL e 400X CL e 15 pF Min Max 36 33 30 27 ns ns ns ns Units Propagation Delay Time Low to High Level Output Propagation Delay Time High to Low Level Output Propagation Delay Time Low to High Level Output Propagation Delay Time High to Low Level Output 2 Function Table Inputs G1 L L L L L L L L L L L L L L L L L H H G2 L L L L L L L L L L L L L L L L H L H D L L L L L L L L H H H H H H H H X X X C L L L L H H H H L L L L H H H H X X X B L L H H L L H H L L H H L L H H X X X A L H L H L H L H L H L H L H L H X X X 0 L H H H H H H H H H H H H H H H H H H 1 H L H H H H H H H H H H H H H H H H H 2 H H L H H H H H H H H H H H H H H H H 3 H H H L H H H H H H H H H H H H H H H 4 H H H H L H H H H H H H H H H H H H H 5 H H H H H L H H H H H H H H H H H H H 6 H H H H H H L H H H H H H H H H H H H 7 H H H H H H H L H H H H H H H H H H H Outputs 8 H H H H H H H H L H H H H H H H H H H 9 H H H H H H H H H L H H H H H H H H H 10 H H H H H H H H H H L H H H H H H H H 11 H H H H H H H H H H H L H H H H H H H 12 H H H H H H H H H H H H L H H H H H H 13 H H H H H H H H H H H H H L H H H H H 14 H H H H H H H H H H H H H H L H H H H 15 H H H H H H H H H H H H H H H L H H H H e High Level L e Low Level X e Don’t Care Logic Diagram TL F 6548 – 2 3 4 Physical Dimensions inches (millimeters) 24-Lead Ceramic Dual-In-Line Package (J) Order Number 54154DMQB or DM54154J NS Package Number J24A 24-Lead Molded Dual-In-Line Package (N) Order Number DM74154N NS Package Number N24A 5 54154 DM54154 DM74154 4-Line to 16-Line Decoders Demultiplexers Physical Dimensions inches (millimeters) (Continued) 24-Lead Ceramic Flat Package (W) Order Number 54154FMQB NS Package Number W24C LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or systems which (a) are intended for surgical implant into the body or (b) support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the user National Semiconductor Corporation 1111 West Bardin Road Arlington TX 76017 Tel 1(800) 272-9959 Fax 1(800) 737-7018 2 A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness National Semiconductor Europe Fax (a49) 0-180-530 85 86 Email cnjwge tevm2 nsc com Deutsch Tel (a49) 0-180-530 85 85 English Tel (a49) 0-180-532 78 32 Fran ais Tel (a49) 0-180-532 93 58 Italiano Tel (a49) 0-180-534 16 80 National Semiconductor Hong Kong Ltd 13th Floor Straight Block Ocean Centre 5 Canton Rd Tsimshatsui Kowloon Hong Kong Tel (852) 2737-1600 Fax (852) 2736-9960 National Semiconductor Japan Ltd Tel 81-043-299-2309 Fax 81-043-299-2408 National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and 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